Thyssen Mining was the major contractor for the development of the Goldrush Twin Declines. Twin parallel declines were constructed to access a new deposit. Specifications called for two 18ft x 18ft modified arch profile drifts to be driven 62 feet apart for 13,000 feet each at a -3.7% decline.
Client: Nevada Gold Mines (NGM)
Date: July 2018 – December 2020
Project Scope: 3400ft concrete lined shaft, 24ft diameter
Project Location: Crescent Valley, Nevada
